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No.607,864. Patented July 26, '|898` F. LAcEY. STOP MOTION FOHSPINNINGMACHINES.

(Application led Aug. 27, 1897.) (N 0 M o d e I A TTHNEYS.

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UNiTEn STATESV ATENr 'Erica FRED LACEY, OF VALLEYFIELD, CANADA.

STOP-MOTION FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 607,864, dated July 26,1898.

Application nea August 27, 1897.

To all whom t may concern.:

Be it known that I, FRED LACEY, of Valleyeld, in the Province of Quebecand Dominion of Canada, have invented certain new and usefulImprovements in Stop Motions for Spinning, Vinding, and TwistingMachines; and I do hereby declare that the folloWin gis a full, clear,and exact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form apart of this specification.

This invention relates to that class of mechanical devices calledstop-motions, which are applied to various kinds of machines. In thiscase it is shown adapted to spinning, winding, and twisting machines.

It is fully explained and illustrated in this specification and theaccompanying drawings.

Figure l shows the application of the stopinotion to a machine fordoubling or twisting two or more yarns together. Fig. 2 is a top viewofthe stopping mechanism. Fig. 3 shows its application to awinding-machine.

It is not deemed necessary to set forth the necessity for stop-motionson this class of machines to those skilled in the art and for whom thisdescription is intended, as the waste of material and injury to thethread resulting from running single7 or with less strands than requiredto make a perfect thread in the case of the twister or Winder and thewaste of roving and the clogging up of the drawing-rolls in the breakingof the thread in the spinning are Well known. In Fig. l a set of threespools are shown holding yarn to be twisted or doubled into one thread,each set of three spools and spindle being operated independently of theother sets in the machine, so only one is shown.

a a are the rolls that draw the yarn d cl from the spools D D, held onthe creel-board H, and deliver it to the twisting-spindle and bobbin,(not shown,) or, in case of a winding-machine, to the spool Y, Fig 5.

Between the spools D and rolls a is placed the stopping mechanismattached to the rail A. This mechanism consists of a standard g, securedby means of screws passing through the foot of the standard into therail A. On

one side of the standard g a dogfu is held free slain No. 649,789. (Nomodel.)

of the standard opposite to the dog is extended out to receive thedrop-wires o', which are held in slots f, cut vertically across theextension h. The inner ends of the wires are bent into eyes that areheld in the slots by a pin r, that passes through all of them, leavingthe wires free to swing up and down on the pin. The wires o are bentdown after leaving the standard and then up7 and an eye o" is made ontheend of each for one of the ends CZ to pass through. A horizontal pin 'L'is put in one side of a projection on the dog v and extends under thedrop-wires o'. A horizontal'rod 7L is held in brackets j, attached tothe side of the rail A, under which rod the Wires 0 pass, and arms B aresecured to the rod n, extending along the frame to hold a wire s, thatextends from one arm B under the drop-wires o to the next arm B for thepurpose of lifting all the drop-wires at once when desired. The upperend of the dog@ is made heavy enough to overbalance its lower end whenthe drop-wires are raised by the yarns clear of the pin 7l; but when oneof the wires drops on the pin its weight is sufticient to overbalancethe upper end of the dog and cause the lower end to fall down in contactwith the foot of the standard, it being too long to swing under thepivot clear of the toot. When all the yarns d are intact, the tension ofthe rolls ct in drawing them from the spools through the eyes o" of thewires and by the guide-pin c under the dog o will hold each wire up andallow the dog to trip back and give free passage t0 the yarns to therolls; but if one of the spools runs out or a yarn breaks the drop-wireon that yarn will drop and push the dog down by the pin i, which willcatch all the yarns between the dog and foot of the standard and holdthem from going to the doubled strand with less yarns than are requiredto make perfect work.

In Fig. 3 the application to a Winder is shown, which is the same as thetwister shown in Fig. l, only a wire 12" is inserted in the front ofthedog o with a hook at its outer end to catch on the pins 0" c'", insertedin the ends of the short friction-roll d', that carry the spools Z', andstop the roll and spool when the dog o drops on the yarn.

IOO

Having thus described my improvements, I claim as my invention anddesire to secure by Letters Patent- 1. In a stop-motion, the combinationof a standard, a dog pivoted to said standard, the part of the dog belowthe pivot being longer than the distance between the pivot and thefootof the standard, a series of drop-wires, a pin in said dog extendingunder said series of drop-wires to receive them when they drop,substantially as described.

2. In a stop-motion the combination of a standard, a dog pivotedthereto, the part of the dog below the pivot being longer than thedistance between the pivot and the foot of the standard, a series ofdrop-wires, a pin fast in said dog and extending under said series ofdrop-wires, a rod held to turn in brackets and having an arm carrying awire under the drop-wires to raise them when down and allow the threadsto be pieced when broken, substantially as described.

3. In a stop-motion the combination of a standard, a dog pivoted to saidstandard, the part of the dog below the pivot being longer than thedistance between the pivot and the foot of the standard, a series ofdrop-wires, a pin fast in said dog and extending under said drop-wiresto receive4 them when they drop, a wire inserted in the front of saiddog, and having a hook on its outer end to stop the roll and spool fromwinding in the end of the thread, substantially as described.

In testimony whereof I have hereunto set my hand this 6th day of July,A. D. 1897.

FRED LACEY.

In presence of- LoUIs SIMPSON, A. E. FoLLows.

